This vintage OP Art vase set was produced in the 1970s in Germany. It is made of porcelain with an OP Art ammonite surface optic.This set contains two vases from the same design series in different shapes and sizes. The bottom is marked with the imprint produced by AK Kaiser, Germany.A simple and minimalist design from the 1970s design era. This item is a wonderful addition to any modern home.Dimensions:LeftHeight 24cmDepth 8cmLength 8cmRightHeight 18.5cmDepth 5.5cmLength 7.5cm.Condition:This item is in very good vintage condition with no damage with patina.